search
Back to results

A Conservative vs an Ablative Approach for Treatment of Hyperthyroidism in Patients With Graves' Orbitopathy (ABLAGO)

Primary Purpose

Graves' Orbitopathy

Status
Recruiting
Phase
Phase 3
Locations
Italy
Study Type
Interventional
Intervention
Methimazole
Radioiodine or thyroidectomy
Sponsored by
University of Pisa
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Graves' Orbitopathy

Eligibility Criteria

18 Years - 75 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Patients willing and capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form
  2. A diagnosis of Graves' disease based on the presence of hyperthyroidism associated with detectable anti-thyrotropic hormone (TSH) receptor autoantibodies (TRAb). Patients must be euthyroid under control on stable medical regimen and every effort will be made to maintain the euthyroid status for the entire duration of the clinical trial.
  3. Duration of Graves' disease shorter than 18 months
  4. A moderate-to-severe GO, defined as the presence of at least one of the following criteria in the most affected eye: an exophthalmos ≥2 mm compared with normal values for sex and race; presence of inconstant to constant diplopia; a lid retraction ≥2 mm
  5. Active GO: CAS ≥ 3 out of 7 points in the most affected eye. Taking into account severity (moderate-to-severe) and activity (CAS ≥ 3/7) of GO, patients are eligible for methylprednisolone treatment according to clinical practice.
  6. Duration of GO shorter than 18 months
  7. Male and female patients of age 18-75 years
  8. Compliant patient, regular follow-up possible

Exclusion Criteria:

  1. Optic neuropathy
  2. Previous therapy for Graves' disease with radioiodine or thyroidectomy
  3. Corticosteroids or other immunosuppressive treatment for GO or other reasons in the last 3 months.
  4. Previous surgical treatment and/or radiotherapy for GO
  5. Contraindications to GC: hypersensitivity to the active substance or to any of the excipients; uncontrolled hypertension, uncontrolled diabetes; history of peptic ulcer; urinary infections, glaucoma, systemic fungal infections, systemic infections unless appropriate therapy is employed, idiopathic thrombocytopenic purpura, cerebral edema associated with malaria.
  6. Use of medications interfering with GC or increasing the risk of GC-related adverse events (see prohibited therapies)
  7. Acute or chronic liver disease
  8. Contraindications to ATD: hypersensitivity to the active substance or to any of the excipients; breastfeeding
  9. Women of childbearing potential (WOCBP, namely not in menopause or in menopause since less than two years; in all other instances women will be considered as non-WOCBP) and men who are sexually active with WOCBP must use any contraceptive method with a failure rate of less than 1% per year (as indicated in Appendix) for at least 6 and 7,5 months, respectively, after the last dose of the investigational drug (see also 2014_09_HMA_CTFG_Contraception.pdf, namely the "2014 CTFG Reccommendtions related to contraception and pregnancy testing in clinical trials")
  10. Contraindications of any kind to perform thyroidectomy
  11. Mental illness that prevent patients from comprehensive, written informed consent

Sites / Locations

  • Endocrinology Unit IIRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Methimazole

Thyroid ablation

Arm Description

Antithyroid drugs (at individualized dosage) for 72 weeks and a cumulative dose of 4.5 g of methylprednisolone divided into 12 weekly infusions

Radioiodine therapy or total thyroidectomy (according to ultrasound thyroid volume) and a cumulative dose of 4.5 g of methylprednisolone divided into 12 weekly infusions

Outcomes

Primary Outcome Measures

Overall GO outcome
Improvement is defined as change in two of the following outcome measures in at least one eye, without deterioration in any of the same measures in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".

Secondary Outcome Measures

Overall GO outcome
Improvement is defined as change in two of the following outcome measures in at least one eye, without deterioration in any of the same measures in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".
Overall GO outcome
Improvement is defined as change in two of the following outcome measures in at least one eye, without deterioration in any of the same measures in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".
Response of individual GO parameters: proptosis, CAS, eyelid width, diplopia, and visual acuity
Improvement is defined as change in each of the following outcome measures in at least one eye, without deterioration in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".
Quality of life questionnaire
Comparison of a disease specific quality of life questionnaire (GO-QoL) at 24, 48 and 72 weeks. Positive response: an improvement in the questionnaire by at least 6/48 points. The GO-QoL contains 8 questions on visual functioning and 8 questions on appearance. The minimal clinically important difference in scores is ≥ 10 points for invasive therapies, but a change of 6 is already perceived by patients as beneficial and is associated with an important change in daily functioning. The GO-QoL is well validated, widely used, and available in eight languages. The GO-QoL is recommended as an independent outcome measure in randomized clinical trials24.

Full Information

First Posted
February 25, 2021
Last Updated
March 14, 2023
Sponsor
University of Pisa
search

1. Study Identification

Unique Protocol Identification Number
NCT04776993
Brief Title
A Conservative vs an Ablative Approach for Treatment of Hyperthyroidism in Patients With Graves' Orbitopathy
Acronym
ABLAGO
Official Title
A Phase III, Randomized, Controlled, Open Label, no Profit, Single-center Intervention Study to Compare the Effect of a Conservative (Antithyroid Drugs) and an Ablative Approach (Radioiodine or Total Thyroidectomy) for the Treatment of Hyperthyroidism in Patients With Graves' Disease and Moderate-to-severe and Active Graves' Orbitopathy (GO) Treated With Intravenous Glucocorticoids (ABLAGO Study)
Study Type
Interventional

2. Study Status

Record Verification Date
March 2023
Overall Recruitment Status
Recruiting
Study Start Date
March 2, 2023 (Actual)
Primary Completion Date
September 1, 2024 (Anticipated)
Study Completion Date
March 1, 2026 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Pisa

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
Graves' disease (GD) is the most frequent cause of hyperthyroidism in iodine sufficient countries and Graves' orbitopathy (GO) is its most common extrathyroidal manifestation. Restoration and maintenance of euthyroidism are imperative in Graves' disease patients with GO. The main treatment options for Graves' hyperthyroidism are antithyroid drugs, radioactive iodine (RAI), and surgery. Whether one or the other therapy for Graves' hyperthyroidism offers the best protection against GO is not established. The study is aimed at comparing the effects of a conservative approach (antithyroid drugs, ATDs, experimental arm) vs an ablative approach (radioiodine or total thyroidectomy) of thyroid treatment on the overall outcome of GO in patients with GD and moderate-to-severe and active GO treated with intravenous glucocorticoids.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Graves' Orbitopathy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
52 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Methimazole
Arm Type
Experimental
Arm Description
Antithyroid drugs (at individualized dosage) for 72 weeks and a cumulative dose of 4.5 g of methylprednisolone divided into 12 weekly infusions
Arm Title
Thyroid ablation
Arm Type
Active Comparator
Arm Description
Radioiodine therapy or total thyroidectomy (according to ultrasound thyroid volume) and a cumulative dose of 4.5 g of methylprednisolone divided into 12 weekly infusions
Intervention Type
Drug
Intervention Name(s)
Methimazole
Other Intervention Name(s)
MMI
Intervention Description
Methimazole for 72 weeks
Intervention Type
Procedure
Intervention Name(s)
Radioiodine or thyroidectomy
Other Intervention Name(s)
Thyroid ablation
Intervention Description
Treatment with radioiodine or with thyroidectomy
Primary Outcome Measure Information:
Title
Overall GO outcome
Description
Improvement is defined as change in two of the following outcome measures in at least one eye, without deterioration in any of the same measures in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".
Time Frame
24 weeks
Secondary Outcome Measure Information:
Title
Overall GO outcome
Description
Improvement is defined as change in two of the following outcome measures in at least one eye, without deterioration in any of the same measures in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".
Time Frame
48 weeks
Title
Overall GO outcome
Description
Improvement is defined as change in two of the following outcome measures in at least one eye, without deterioration in any of the same measures in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".
Time Frame
72 weeks
Title
Response of individual GO parameters: proptosis, CAS, eyelid width, diplopia, and visual acuity
Description
Improvement is defined as change in each of the following outcome measures in at least one eye, without deterioration in both eyes (compared to baseline): Improvement in CAS by at least 2 points Improvement in exophthalmos by at least 2 mm (Hertel exophthalmometer) Improvement in lid aperture by at least 2 mm Improvement in diplopia (disappearance or change in the degree) Improvement of visual acuity by at least 0.2/1 Patients meeting the improvement criteria will be considered as "responders". All other patients will be considered as "non-responders".
Time Frame
24, 48 and 72 weeks
Title
Quality of life questionnaire
Description
Comparison of a disease specific quality of life questionnaire (GO-QoL) at 24, 48 and 72 weeks. Positive response: an improvement in the questionnaire by at least 6/48 points. The GO-QoL contains 8 questions on visual functioning and 8 questions on appearance. The minimal clinically important difference in scores is ≥ 10 points for invasive therapies, but a change of 6 is already perceived by patients as beneficial and is associated with an important change in daily functioning. The GO-QoL is well validated, widely used, and available in eight languages. The GO-QoL is recommended as an independent outcome measure in randomized clinical trials24.
Time Frame
24, 48 and 72 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
75 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Patients willing and capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form A diagnosis of Graves' disease based on the presence of hyperthyroidism associated with detectable anti-thyrotropic hormone (TSH) receptor autoantibodies (TRAb). Patients must be euthyroid under control on stable medical regimen and every effort will be made to maintain the euthyroid status for the entire duration of the clinical trial. Duration of Graves' disease shorter than 18 months A moderate-to-severe GO, defined as the presence of at least one of the following criteria in the most affected eye: an exophthalmos ≥2 mm compared with normal values for sex and race; presence of inconstant to constant diplopia; a lid retraction ≥2 mm Active GO: CAS ≥ 3 out of 7 points in the most affected eye. Taking into account severity (moderate-to-severe) and activity (CAS ≥ 3/7) of GO, patients are eligible for methylprednisolone treatment according to clinical practice. Duration of GO shorter than 18 months Male and female patients of age 18-75 years Compliant patient, regular follow-up possible Exclusion Criteria: Optic neuropathy Previous therapy for Graves' disease with radioiodine or thyroidectomy Corticosteroids or other immunosuppressive treatment for GO or other reasons in the last 3 months. Previous surgical treatment and/or radiotherapy for GO Contraindications to GC: hypersensitivity to the active substance or to any of the excipients; uncontrolled hypertension, uncontrolled diabetes; history of peptic ulcer; urinary infections, glaucoma, systemic fungal infections, systemic infections unless appropriate therapy is employed, idiopathic thrombocytopenic purpura, cerebral edema associated with malaria. Use of medications interfering with GC or increasing the risk of GC-related adverse events (see prohibited therapies) Acute or chronic liver disease Contraindications to ATD: hypersensitivity to the active substance or to any of the excipients; breastfeeding Women of childbearing potential (WOCBP, namely not in menopause or in menopause since less than two years; in all other instances women will be considered as non-WOCBP) and men who are sexually active with WOCBP must use any contraceptive method with a failure rate of less than 1% per year (as indicated in Appendix) for at least 6 and 7,5 months, respectively, after the last dose of the investigational drug (see also 2014_09_HMA_CTFG_Contraception.pdf, namely the "2014 CTFG Reccommendtions related to contraception and pregnancy testing in clinical trials") Contraindications of any kind to perform thyroidectomy Mental illness that prevent patients from comprehensive, written informed consent
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Michele Marino
Phone
+39050997346
Email
michele.marino@med.unipi.it
First Name & Middle Initial & Last Name or Official Title & Degree
Giulia Lanzolla
Phone
+39050997346
Email
giulia.lanzolla8@gmail.com
Facility Information:
Facility Name
Endocrinology Unit II
City
Pisa
State/Province
PI
ZIP/Postal Code
56124
Country
Italy
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Michele Marinò, MD
Phone
+39050997346
Email
michele.marino@med.unipi.it
First Name & Middle Initial & Last Name & Degree
Giulia Lanzolla, MD
Phone
+39050997346
Email
giulia.lanzolla8@gmail.com

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

A Conservative vs an Ablative Approach for Treatment of Hyperthyroidism in Patients With Graves' Orbitopathy

We'll reach out to this number within 24 hrs